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点P(3,4)关于x轴对称的点是P′,P′关于y轴的对称点坐标是( ) A.(3...
点P(3,4)关于x轴对称的点是P′,P′关于y轴的对称点坐标是( )
A.(3,-4)
B.(-3,4)
C.(-3,-4)
D.(3,4)
考点分析:
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